A TFT-Based Flexible PPG Acquisition Circuit in a 3-μm LTPS Process for Packaging-Free Smart Ring Applications
Photoplethysmography (PPG) is a commonly used non-invasive biological signal detection technique that can analyze the heart rate and blood oxygen saturation, which plays an important role in daily health monitoring. In Fig. 1 (top), integrating biological acquisition into smart rings is an emerging trend in the consumer electronics [1]. However, integrating all building blocks into a space-limited device encounters challenges. It also bring discomfort to the users. A feasible integrate solution is soldering Si chips onto a flexible substrate which requires costly packaging [2]. The semi flexible system constrains its bendability, still requiring an extensive dynamic range (DR) to mitigate motion artifacts [3].
Authors
- Yuqing Lou (ORCID: https://orcid.org/0000-0001-9218-2718)
- Han‐Bo Zhang (ORCID: https://orcid.org/0000-0002-7647-3248)
- Bo Yang (ORCID: https://orcid.org/0000-0003-2855-3662)
- Jian Zhao (ORCID: https://orcid.org/0000-0003-2140-1236)
- Zhouchen Ma (ORCID: https://orcid.org/0009-0009-0498-9024)
- Liang Qi (ORCID: https://orcid.org/0000-0001-5020-080X)
- Guoxing Wang (ORCID: https://orcid.org/0000-0002-0235-1475)
- Xiaojun Guo (ORCID: https://orcid.org/0000-0003-3946-9458)
- Yongfu Li (ORCID: https://orcid.org/0000-0002-6322-8614)
- Hao Wu (ORCID: https://orcid.org/0000-0001-9453-7228)
Institutions
- Shanghai Jiao Tong University (CN)
- Wilmington University (US)
Publication Details
- Published
- 2024-11-18
- DOI
- https://doi.org/10.1109/a-sscc60305.2024.10848710
- Primary Topic
- Semiconductor Lasers and Optical Devices
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- National Natural Science Foundation of China
- Research and Development